To clarify, no intent to defraud anyone by selling my '13 Touring model as a less expensive '13 Base model, for less money, and leaving in the Bose stereo. Our cars don't have any lettering on the them to identify the trim level and as far as I can tell from this post by AK370Z, our cars don't appear to have the trim level designated in the VIN number:
370Z VIN no Decoding!
Thinking about the plan because I already have 30k miles and the factory warranty will expire soon.